JPS6257585U - - Google Patents
Info
- Publication number
- JPS6257585U JPS6257585U JP14858085U JP14858085U JPS6257585U JP S6257585 U JPS6257585 U JP S6257585U JP 14858085 U JP14858085 U JP 14858085U JP 14858085 U JP14858085 U JP 14858085U JP S6257585 U JPS6257585 U JP S6257585U
- Authority
- JP
- Japan
- Prior art keywords
- output
- capacitor
- rectifier circuit
- circuit
- transistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Power Conversion In General (AREA)
Description
第１図はこの考案に係るリツプルフイルタ回路
の一実施例を示す回路図、第２図及び第３図はそ
れぞれ従来のリツプルフイルタ回路の構成を説明
するための回路図である。
１１……整流回路、１２……リツプルフイルタ
回路、１３，１４……出力端子、ＰＳ……交流電
源、ＤＢ……ダイオードブリツジ回路、Ｃ１……
平滑コンデンサ、Ｃ２……コンデンサ、Ｃ３……
出力コンデンサ、Ｒ１，Ｒ２……抵抗、Ｑ１……
トランジスタ、Ｑ２……定電流充電用ＦＥＴ，Ｃ
Ｄ……ツエナーダイオード。
FIG. 1 is a circuit diagram showing an embodiment of a ripple filter circuit according to the present invention, and FIGS. 2 and 3 are circuit diagrams for explaining the configuration of a conventional ripple filter circuit, respectively. 11... Rectifier circuit, 12... Ripple filter circuit, 13, 14... Output terminal, PS... AC power supply, DB... Diode bridge circuit, C1...
Smoothing capacitor, C2... Capacitor, C3...
Output capacitor, R1, R2...Resistor, Q1...
Transistor, Q2...FET for constant current charging, C
D...Zener diode.
Claims (1)
の出力電流で充電される第１のコンデンサと、こ
の第１のコンデンサの充電電圧に応じて前記直流
出力を制御するトランジスタと、このトランジス
タの出力電流で充電される出力コンデンサと、前
記整流回路の一出力端と前記第１のコンデンサ間
に位置する抵抗及びツエナーダイオードの直列回
路とを具備し、前記直流出力が前記ツエナーダイ
オードのツエナー電圧を越えるとき前記第１のコ
ンデンサに充電電流を供給することを特徴とする
リツプルフイルタ回路。 A rectifier circuit that derives a DC output, a first capacitor that is charged with the output current of this rectifier circuit, a transistor that controls the DC output according to the charging voltage of this first capacitor, and an output current of this transistor. and a series circuit of a resistor and a Zener diode located between one output terminal of the rectifier circuit and the first capacitor, when the DC output exceeds the Zener voltage of the Zener diode. A ripple filter circuit characterized in that a charging current is supplied to the first capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14858085U JPS6257585U (en) | 1985-09-28 | 1985-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14858085U JPS6257585U (en) | 1985-09-28 | 1985-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6257585U true JPS6257585U (en) | 1987-04-09 |
Family
ID=31062986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14858085U Pending JPS6257585U (en) | 1985-09-28 | 1985-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6257585U (en) |
-
1985
- 1985-09-28 JP JP14858085U patent/JPS6257585U/ja active Pending